HDSP-H3G3 Equivalent & Substitute Parts

Part Overview

The HDSP-H3G3 is a single-character 7-segment LED display module manufactured by Broadcom Limited, featuring a 0.36" green display in a 10-DIP package configuration. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity. The display operates at 2V forward voltage with a 20mA test current and delivers 5mcd brightness output at a 570nm peak wavelength.

Substiute Parts

HDSP-H3G3

Broadcom LimitedIn Stock: 802HDSP-H3G3 Datasheet

Current PartRFQ

SC36-11CGKWA

KingbrightIn Stock: 1138SC36-11CGKWA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HDSP-H3G3 is determined by strict alignment across the following critical parameters:

Mandatory Matching Parameters:

• Display Type: 7-Segment LED
• Number of Characters: 1
• Common Pin Configuration: Common Cathode
• Color: Green
• Package Type: 10-DIP (0.200", 5.08mm)
• Physical Dimensions: 0.551" H x 0.295" W x 0.335" D (14.00mm x 7.50mm x 8.50mm)
• Digit Size: 0.36" (9.14mm)

Allowable Parameter Variance: Substitute parts may exhibit variations within the following electrical parameters while maintaining functional compatibility:

• Voltage - Forward (Vf): Tolerance range around 2V nominal
• Current - Test: 20mA specification
• Millicandela Rating: Higher brightness values acceptable
• Wavelength - Peak: Minor shifts within green spectrum acceptable
• Power Dissipation: Values within component thermal design limits

The SC36-11CGKWA from Kingbright qualifies as a direct substitute based on identical mechanical packaging, display configuration, and common cathode architecture, with allowable electrical parameter variations.

Parameter Comparison

Engineering Selection Recommendations

The SC36-11CGKWA represents a qualified substitute for the obsolete HDSP-H3G3 based on the following engineering criteria:

Mechanical Compatibility: Both components share identical 10-DIP package geometry, pin spacing (0.200", 5.08mm), and physical envelope dimensions (14.00mm x 7.50mm x 8.50mm). PCB footprint compatibility is assured without layout modification.

Electrical Compatibility: The SC36-11CGKWA operates within acceptable parameter variance. The forward voltage increase from 2V to 2.1V represents a 5% nominal shift, manageable through standard current-limiting resistor adjustment in typical LED drive circuits. The 20mA test current specification remains identical, ensuring driver circuit compatibility.

Regulatory Compliance: Both components maintain ROHS3 compliance and identical moisture sensitivity classification (MSL 1 - Unlimited), satisfying environmental and reliability requirements for equivalent applications.

Product Availability: The SC36-11CGKWA is classified as Active with confirmed inventory (1101 pcs), providing production continuity for designs currently using the obsolete HDSP-H3G3.

Performance Enhancement: The SC36-11CGKWA delivers 11mcd brightness versus the original 5mcd specification, representing a 120% brightness improvement. This enhanced luminous intensity may require circuit-level brightness adjustment through resistor modification if original brightness levels are required.

Frequently Asked Questions (FAQ)

Q: Can the SC36-11CGKWA be used as a direct pin-for-pin replacement for the HDSP-H3G3?

A: Yes. Both components utilize identical 10-DIP package configuration with matching pin assignments for common cathode 7-segment display operation. No PCB layout modification is required.

Q: What is the impact of the 0.1V forward voltage difference (2V vs 2.1V)?

A: The 5% voltage increase is within normal component tolerance and does not prevent substitution. Standard LED drive circuits using current-limiting resistors will accommodate this variance. If precise brightness matching is required, resistor values may require minor adjustment.

Q: Why does the SC36-11CGKWA have higher brightness (11mcd vs 5mcd)?

A: The SC36-11CGKWA incorporates improved LED die technology, delivering enhanced luminous intensity at identical test current. This represents a performance improvement. If original brightness levels are critical to system design, circuit-level current reduction through resistor modification can normalize brightness output.

Q: Are there any compliance or reliability concerns with substitution?

A: No. Both components maintain ROHS3 compliance, identical moisture sensitivity classification (MSL 1), and equivalent environmental ratings. Substitution does not introduce compliance or reliability risks.

Q: What is the wavelength difference between 570nm and 574nm?

A: The 4nm shift remains within the green spectrum and is imperceptible to human vision. Both components produce visually identical green color output. This variance does not affect functional compatibility.

Q: Is the SC36-11CGKWA suitable for new designs?

A: Yes. The SC36-11CGKWA is classified as Active product status with confirmed inventory availability, making it suitable for both legacy design support and new development applications.